What is fermentation, Biology

Assignment Help:

What is Fermentation ?

Fermentation is a process used by anaerobic organisms and certain cells of aerobic organisms, such as muscle cells deprived of oxygen, to obtain additional energy from the glycolytic pathway. In other words, if there is no oxygen to accept electrons at the end of the electron transport system, all of the NAD available will be bound in reduced form, and cells must turn to glycolysis to supply ATP. As you have learned, glycolysis requires NAD+, in order to oxidize (remove electrons from) G3P to form 3PG. Oxidizing G3P forms NADH + H+. NAD+ must then be regenerated to allow glycolysis to continue.

In one type of fermentation, NADH + H+ reduce pyruvate to form either lactic acid or ethanol, depending upon the organism, plus NAD+. This regenerates NAD+, allowing glycolysis to continue. Lactic acid is the end point in overused muscle tissue; ethanol (ethyl alcohol) during fermentation of beer or wine. The reactions are as follows:

Pyruvate +  NADH + H+→lactic acid + NAD+

or

Pyruvate + NADH + H+→ ethanol + CO2 + NAD+

 

 


Related Discussions:- What is fermentation

Regulation of respiration in a child, Describe the factors that are involve...

Describe the factors that are involved in the regulation of respiration in a child who decides to hold his/her breath for as long as possible.

Whcih group of individual animals and plants called species, Q. Whcih group...

Q. Whcih group of individual animals and plants called Species? A group of individual plants and animals that are fundamentally alike is treated as a ,species. Species is a par

Explain about phylum annelida, How is the respiratory system of beings of ...

How is the respiratory system of beings of the phylum Annelida characterized? Respiration in annelids can be cutaneous or branchial. Cutaneous respiration happens due to the r

Gastrulation, Gastrulation  Gastrulation is the process through whic...

Gastrulation  Gastrulation is the process through which the presumptive areas of organ specific rudimetns present on the surface of blastula move to their specific position

Demand and supply of medical care, Normal 0 false false fal...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Determine the prevention of flap necrosis, Prevention of flap necrosis ...

Prevention of flap necrosis Flap necrosis can be prevented if the surgeon attends to four basic principles. 1. First, the apex of a flap should never be wider than the base,

Explain glycolysis, Explain glycolysis? Name the two monosaccharides w...

Explain glycolysis? Name the two monosaccharides which readily enter the glycolytic pathway. Illustrate a diagrammatic sketch of the microscopic view of a mammalian sperm a

Most important allosteric effector of glycolysis in liver, Name the most im...

Name the most important allosteric effector of glycolysis in the liver. Fructose-2,6-bisphosphate  is the most important allosteric effector of glycolysis  in the liver

Explain about oligomeric enzymes, Oligomeric enzymes Oligomeric protein...

Oligomeric enzymes Oligomeric proteins consist of two or more polypeptide chains, which are usually linked to each other by non-covalent interactions and never by peptide bonds

PHYLUM MOLLUSCA, How we attempt a question of phylum mollusca?

How we attempt a question of phylum mollusca?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd